1. Section of Cardiology, Pediatrics and Internal Medicine; Yale School of Medicine; New Haven Conn USA
2. Nell Hodgson Woodruff School of Nursing; Emory University; Atlanta Ga USA
3. Baptist Health South Florida; Miami Fla USA
4. Division of Cardiothoracic Surgery; Emory University School of Medicine; Atlanta Ga USA
5. Division of Cardiology; Emory University School of Medicine; Atlanta Ga USA
6. Children's Healthcare of Atlanta; Sibley Heart Center; Atlanta Ga USA